/**
 *       Copyright (c) 2012 Lukas Zaruba
 *
 *   This file is part of Robot Playground.
 *
 *   Robot Playground is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   Robot Playground is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with Robot Playground. If not, see <http://www.gnu.org/licenses/>.
 */
package net.zarubsys.robotplayground.scripting2d.functions;

import java.util.List;

import net.zarubsys.commons.scripting.IScriptFunction;
import net.zarubsys.commons.scripting.ParsedStatement;
import net.zarubsys.commons.scripting.ScriptingEnvironment;
import net.zarubsys.commons.scripting.ScriptingException;
import net.zarubsys.robotplayground.scripting2d.Node2D;

/**
 * GetNodeOrigin
 *
 * @author Lukas Zaruba, lukas.zaruba@gmail.com
 */
public class GetNodeOrigin implements IScriptFunction {

	@Override
	public String getName() {
		return "getNodeOrigin";
	}

	@Override
	public int getMinArgsNum() {
		return 1;
	}

	@Override
	public int getMaxArgsNum() {
		return 1;
	}

	@Override
	public Object execute(ScriptingEnvironment env, List<ParsedStatement> args) throws ScriptingException {
		Object rawNode = args.iterator().next().execute(env);
		if (!(rawNode instanceof Node2D)) throw new IllegalArgumentException("Expecting an instance of Node2D!, Got " + rawNode);
		Node2D node = (Node2D) rawNode;
		return node.getOrigin();
	}

}

